Photo-enlarging machine



June 2, 1925- 1,540,340

C. KESSES PHOTO ENLARGING MACHINE 2 Sheets-Sheet l Filed May 5, 1922 ...nlmulw' [rive/)form am@ MAPA www' C. KESSES vPHOTO ENLARGING MACHINE June 2, 1925.

Filed May 5. 1922 2 Sheets-Sheet 2 INVENTOR Patented Jure 2, 1925.

1,540,340 PATENT OFFICE. i

CHARLES KESSES, OF NEW YORK, N. Y.

PHOTO-ENLARGING MACHINE.

Application led May 3, 1922. Serial No. 558,197.

To all whom it may concern.' Be it known that I, CHARLES KEssEs, c1t1- zen of'the United States, a'nd resident of New York city, in the county of New York and State of N. Y., have invented certain new and useful Photo-Enlarging Machines, of which the following is a specication.

My invention is related to my application for a photo printing machine, patented `May 3, 1922 No. 1,417,832, for exposing intermittent successive photosl for the size in 4the length and the width required, said device .isl operating in conjunction with an exposure clock, which regulates the time of the exposure for' the pictures from one to sixty seconds, and plication are First; to use for enlarging purpose a lens Without the usual rack and pinion movement which is statinarily secured to a lensboard and selectively positioning said lensboard on various fixed positions for exposing diiferent sizes of pictures from different sizes of negatives without focusing.

Second; an intermittently operating feeding mechanism whi-ch can be adjusted to advance the strip for the size of the pictures the objects in this aprequired and wherein can be fed from a roll, or strips of sheet material.

VThird; an exposure device gfor intermittently exposing pictures, which can be regulated for shorter or longer exposure.

Fourth; means provided to hold the paper with the intermittently operating press and l means to prevent movement of the advancing gripper during said exposure.

Fifth; an automatically operating cutting mechanism, which can be adjusted to cut different sized pictures after the exposure. e

Sixth; contact printing with 'flat negaltives on single sheets, also successive pictures on rolls of paper or ony a strip of sheet material.

Seventh; Contact printing with two or three negatives for' exposing successive combination pictures, whereby each picture is exposed with all of said negatives, for instance, a portrait in the centre, a frame design on the outside and a name in one corner.

Eighth; a reciprocating brush carrier, shown in my Patent No. l,4\17,832 can be easily operatively connected to this main whichchine, to dust the negatives before every exposure.

So to build a machine which can be operated by. power or by hand, for printing by enlarging or by contact, to be a useful instrument for the-commercial or portrait photographer and for the bromide printer.

I attain these objects by the mechanism illustrated in the accompanying drawings Fig. I is a vertical view' of the machine, including an enlarging device having a number of vertical spaced positions, which are arranged.v togive fixed focus positions for a lens support and negative support.l

F ig. II is a gripping device to hold and to release the paper, saidi'gripper is operative in the reciprocating carrier.

Fig. III is a view of a cutter and gripper,said device can be moved to different positions for the size of the pictures required.; A l,

Fig. IV is a view of a device for regulating the time of the exposure.

Fig. V is a view of the bottom of the intermittent feeding mechanism, showing a ca'rrier moved by a camy in two positions.

Fig. VI is a horizontal view of said feeding mechanism.

Fig. VII is a top view of said cam, Aa lever which is moved by a second cam for operating the gripping device and showing a curve which is arranged for stopping the carrier during the exposure.

F ig. VIII is a side View ofl aflens without the usual rack and pinion movement` which is stationarily secured in a board provided forinserting in fixed positions.

Fig. IX is a front view of the press, a cam for lifting said press, a dotted line position of said press and said cam showing a period of rest for said press, till the cam'4 lifts the press out of a. fixed position.

The table l, its legs 2, a front and a rear support 3 is secured to said table. A press 4 isv niovably arranged in `guide rails, which are secured to said supports. carrying a cam 5 is `iournaled in said supports.v Said cam is set in bearings in a rim 6, which is operative on a plane surface to reciprocatesaid press in said supports. Av large opening in the press fr is provided for lifting said press with the cam 5, a view of the press and the cam is shown separated in Fig. IX, and a second posi- A shaft 7' tion in a dotted line. This large openingallows the press to hold the paper in position during the time of the exposure.

An intermittent feeding` mechanism is gwithxsuitable hinges secured to the press 4.'

A view of said mechanism from below is shown in Fig. V. and a horizontal view in Fig. VI. A carrier 8, a second view shown in a dotted line position, is reciprocated by a cam 9. A shaft 10 turns in l5 in the cam 9 for the shaft 10, for giving the carrier' 8 the right movement for the size yof the picture required. An upright board l1 is secured to said carrier and suitable springs 12 are provided to press said if) board against said cam. A curve 24 in the provided to prevent the movement of the carrier 8 during the exposure. A combination of a cutter and a receiving gripper 14 is movably securedto the feeding device. Suitable screws are provided for adjusting said combination to different positions, for the size of the pictures required.

An advancing gripper l5, a lseparate view 30. is shown vin Fig. II', is A\secu1-ed\to the carrier 8. Said grippers consisting of one rail 16, which is above the board, one rail 17 p below the lboard and both of said rails are joined together with screws 18. Suitable springs 19 around said screws lift the upper rail 16'. Cam levers 20 arranged in the rail 17 to open and to close said grip-v pers. A lever 21 vis with a pin 22 secured to the frame, its lower end is movably arranged in a bracket. A cam 27 is secured to the shaft 10 for moving the lever 21, thereby operating the cam levers 20, which are hanging in said lever in such a position to close one gripper, when 'the other opens and to exchange -this operation by each half turn of the `cam 27. The cani 23 andthe upright board 11 must have the right height to allow for the up and down `movement of the press.

The negative which is used by contact printing is with suitable clamps secured in the printing frame 26. A drawer 2T which is arranged in said frame is prt vided for inserting suitable mats. A weight 28 is secured5 to the ri ht side of the press 4 to balance the feeding mechanism.

By feeding from a roll, place the roll on the bracket 37 and feed the strip. facing downward over the right hand extension board, underneath the press 4, 'over the sliding board `8, and under the advancing and receiving gripper. w

By feeding sensitive strips of sheet material remove the bracket 37. Suitable or to lower said lamp cabinet to the different positions required. A lens 32 without the usual rack and pinion movement is secured to Na support 33 and a negative 34 with a support 35 arranged to fit in a number of vertical spaced grooves 36 which are secured (y in said enlarging device for` selectively po- `ipright board 11, shown in Fig. VII, is

sit-ioning said lens and said'negative on various fixed positions to expose diiferent size enlarged pictures from a negative for the purpose of eliminating the focusing of the pictures and imake the operators work quick and easy. A view of said lens with its support being shown in Figure 8. Said grooves 36 must be on every side in said device to hold said supports and to cover all the indirect light from' the lampcabinet 29.

,When enlarging from one size to another then positions'for said grooves must have corresponding numbers and arranged in a manner as required for, this purpose, for instance, one of said grooves to holdthe lens with its support must be numbered I and one groove to holdthe negative with its support N-l said grooves must enlarge with said lens the focus of the picture on the face of the sensitive paper which is in' sertcd in the printing frame 26, a second set of said grooves must be numbered 'II one groove'to hold said lens andA one to hold said negative, saidgrooves must be in positions to enlargeL a negative with' the same lens to al different size picture and throw the focus of said picture in the same position in said printing frame, anothenset'of said grooves for said lens. and said negative must be numbered III and must enlarge in the same manner to a different size and so forth, to enable any photographer to enlarge a negative to a given size without focusing.

A switch 30 controls and to regulate thc time of the exposure of said pictures are arranged on the front 'support 3. Said switch consists of two parts, part a and part b, part b is secured to said front support and part ais in suitable guide rails movably arranged on said support. A circuit closer 31 is carried by a bracket which is secured to the main shaft #7. Suitable sprin ,arranged between said circuit closer an said bracket to give perfect circuit connections inn to the contacts in part aand part b, said circuit closer must have the form of a part of f a circle and be in such a position to close the circuit by the contacts a and b by every revolution of the main shaft 7. The parta:v

, exposure, for instance, if the nmcliine is given with any kind ot power a speed to rotate the main shaft once in 12 seconds and part a and part Z) are mostly together and the length of the circuit closer 1s l@ of a circle then the circuit is closed for 3 seconds, b Y moving said parts a and said part b, most y as far apart as the length of said circuit closer, then the circuit is closed for a moment. By running the machine at difleren't speeds and changing the position of part a different exposures can be arranged with said exposure regulating device.

vThe electric current conduits connect the switch 30 to the vlamp cabinet 29. The positive current is led ,1n a conduit 41 from a main switclif-4'2 vto acontact socket 43, which is inserted in the rear wall of said enlarging device. A. conduit 44 to lead said current from said socket to the lamps in the lamp cabinet 29. The negative .current is led in a conduit 45 to the -part b in the switch 30. conduit 46 is secured to the part a to lead the current to the contact socket-43 and a conduit 47 to lead said current from said contact socket to said lamps. The conduits 44 kand 47 must be flexible and of the right lengths to allow the movement of said lamp cabinety to its upper position.

The machine is set in motion with a suitable crank or witha ower Wheel which is vsecured to a main sha t 7. A Sliding bolt 48 is secured to the front support 3 to arrest the motion of the bracket which carries the circuit closer 31, to provide means for the operator to start or to stop with said sliding bolt the Aaction of the machine.

'Now I show the cooperation of the several lparts throughout a complete circlek of move` ments involved in the operation ofthe machine for the enposure of one of the successive enlarged pictures on a roll of sensitive paper. 'A roll of said paper is placed on its` bracket 37, feed the strip facing downward underneath the press 4 over the carrier 8 under the advancing gripper 15 receiving 14 and regulates the cam 9 for the size of the pictures required, regulate the switch 30 for the time of theexposure place the lens 32 and the negative 34 with its supports in the yrequired grooves 36, move the lamp cabinet 29 undersaid negative p ull the sliding bolt 48 therebysetting the machine in motion,

thepress 4 moves down to the printing frame 26 the advancing gripper 15 move in an open positiolrtoward said'frame, the press 4 presses the Ipaper in the focus of the picture lfor the exposure, the circuit closer 31 closes the circuit on part a and part Z), to expose with the lamp cabinet 29 the picture` the grippers-exchange` their operation and the advancing gripper 15 grips the paper, said circuit closer opens said circuit. said press lifts the paper out of said printing frame said advancing gripper advances the paper to said receiving gripper, the cam levers 20 exchange the operation of said gripperl and the machine is ready forl the next operation. v

Then the machine is used toexpose successive pictures by the contact printing process, then the supports for the vlens and for the negative are not used. move the lamp cabinet 29 under the printingframeQG, secure the negative 34 with suitable clamps in said printing frame and print as usual.

To expose successive combination pictures wl'iereby each picture is exposed with two or three negatives, for instance a portrait negative in its centre a frame design nega.- t-ive on the outside and with a negative having the name of the st-udio in one corner, place those negatives next to" each other in the direction of the movement of the strip, regulate thecam 9 for the width of one of said negatives andv print as usual.

I am aware that prior to my invention enlarging devices had been made,` wherein grooves are arranged for holdingga-'lens withl a usual rack and pinion movement for foousing, or a camera with a front focusing device, but I never seen iixed positions arranged for a lens-board Whichisprovided Y' with a stationarily secured lens, my object is to do away withfocusing by enlarging.

What I claim as myinvention and desire to secure by Lett rs Patentv 1. In a photo aphic enlarging' machine in combination ith" a printing frame, an intermittently o erating reciprocating press adapted for hol lng the paper during the exposure in a fixed focus position arranged in said printing frame a feedingrmechanism for intermittently advancing a strip of paper, an)enlarging device comprising a supj port for a lens and a support for a negative,

. tions, one for said lens and one for said negative arranged to enlarge a picture fromsaid negativeto a diffrent size and rto throw the focus of said picture on ysaid paper and a said fixed focus position and is advanced by.

number of said corresponding positions for said lens and for said negative arranged in the same manner to enlarge at each of said positions for a diiferent size, toprovide means to enlarge different size pictures on each of said positions, lamps to expose said pictures, an exposure regulating device for regulating the time of said exposures, circuits for Cconnecting said exposures, regulating device to said lamps, means to close the circuit on said exposure regulating device when the press is holding said paper in said fixed position, a suitable driving mechanism foroperatin said machine at a given speed and anoperating lever arranged to start or tostop the operation of the machine when said paper is lifted by said press out of said feeding mechanism.

2. In a photographic enlarging device in combination with a printing frame, a reciprocating press for holding the paper during the exposure in said frame, a support for a lens and a support for a negative, said lens being stationarily secured in its`Z support,

' vertically spaced means arranged for selectively positioning said lens and its support and said negative with its support on various fixed and corresponding numbered positions, one of said positionsfor said lens and,one of said positions for said negative to provide means to enlarge said-negative and to throwy the focus of the picture Withsaid lens on the paper in said frame and a` series of said corresponding positions for said lens and said negativeto enlarge from each set hf said corresponda positions a different size picture fromsai with said lens the focus of said pictures in the same position, a lamp to expose the picture, an open switchon the lamp circuit and means to closesaid circuit when said press is moved' to hold the paper said frame.

Signed at New(^ York city in the county of New York and State of N. Y. this 26 day of April, A. 111922.

CHARLES? xnssns.

negative and to throw 

